This study examined whether neural responses in the ventral striatum (VS) to in-group facial expressions-presented without explicit awareness-could predict friendship patterns in newly arrived individuals from China six months later. Individuals who initially showed greater VS activity in response to in-group happy expressions during functional neuroimaging later made considerably more in-group friends, suggesting that VS activity might reflect reward processes that drive in-group approach behaviors.
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| http://www.ncbi.nlm.nih.gov/pmc/articles/PMC4501035 | PMC |
| http://dx.doi.org/10.1177/1948550614566093 | DOI Listing |
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